Enzyme catalysis prior to aromatic residues: reverse engineering of a dephosphoCoA kinase

The wide selection of protein constructions and capabilities outcomes from the various properties of the 20 canonical amino acids. The usually accepted speculation is that early protein evolution was related to enrichment of a primordial alphabet, thereby enabling elevated protein catalytic efficiencies and useful diversification. Aromatic amino acids have been possible among the many final additions to genetic code.

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